85227417871 has 4 divisors (see below), whose sum is σ = 86499468952. Its totient is φ = 83955366792.

The previous prime is 85227417853. The next prime is 85227417889. The reversal of 85227417871 is 17871472258.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (85227417853) and next prime (85227417889).

It is not a de Polignac number, because 85227417871 - 2²⁹ = 84690546959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85227417971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636025440 + ... + 636025573.

It is an arithmetic number, because the mean of its divisors is an integer number (21624867238).

Almost surely, 2^85227417871 is an apocalyptic number.

85227417871 is a deficient number, since it is larger than the sum of its proper divisors (1272051081).

85227417871 is a wasteful number, since it uses less digits than its factorization.

85227417871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272051080.

The product of its digits is 1756160, while the sum is 52.

The spelling of 85227417871 in words is "eighty-five billion, two hundred twenty-seven million, four hundred seventeen thousand, eight hundred seventy-one".